Abstract: Ultra-high precise timing control is indispensable for exploring new frontiers in science, as it guarantees high- performance operation of advanced scientific detection facilities under extreme conditions. In particular, attosecond precision timing control provides powerful technical support for achieving faster, more precise, higher energy, and higher resolution observations. This article introduces the principle of optical master oscillator with precise timing distribution and jitter on the order of attoseconds, as well as high precision fiber link stabilization. The application of these techniques in X-ray free electron laser facilities, ultra-intense laser systems and large-scale millimeter wave antenna arrays are summarized.